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© National Instruments Corp.
11
FP-RTD-124 and cFP-RTD-124
Specifications
These specifications are typical for the range –40 to 70 °C unless
otherwise noted.
otherwise noted.
Input Characteristics
Number of channels.......................... 8
ADC resolution................................. 16 bits
Type of ADC..................................... Delta-sigma
Input signal ranges (software-selectable by channel)
Temperature................................ 73 to 1123 K
–200 to 850 °C
–328 to 1562 °F
–328 to 1562 °F
Resistance................................... 0 to 400
Ω
Temperature accuracy
Resolution ......................................... 0.016 °C
Resistance accuracy
Offset error ................................. 0.03
Ω typical, 0.1 Ω max
Gain error ................................... 0.06% typical, 0.1% max
Resolution................................... 0.0061
Resolution................................... 0.0061
Ω
Excitation current.............................. 135 ms pulses of 2 mA every
second
Input noise
........................................±1 bit peak-to-peak
Signal input bandwidth ..................... 3 Hz
Update rate........................................ Each channel is updated
once a second
Error
Measured Value
15 to 35 °C
–40 to 70 °C
Typical
Maximum
Typical
Maximum
–200 to 150 °C
0.15
0.25
0.30
0.60
150 to 850 °C
0.25
0.50
0.80
1.50